When sexual abuse of children is not solely for the purpose of sexual gratification of an individual but is used for economic gain, this is called sexual exploitation. This includes putting children on the market for prostitution, organizing holidays in countries in which sexual contact with children is common and often tolerated by the local authorities. When sexual abuse to children is documented through photos and videos, this is called pedopornography. Using pornography to indicate pictures of sexual abuse on children is not actually the right term, as it could diminish the serious nature of this act and prevent full understanding of the true nature of this terrible crime. Photos and videos are always evident proof of sexual abuse and the children that appear in such pictures are forced to terribly degrading and humiliating coercion and manipulation and are often tortured. In many cases, children are dazed and drugged in various ways and at times are reduced to slavery. The photos and films produced through exploiting children are widely diffused on the Internet, where they are sold or exchanged by people who share a sexual interest in children. Pedopornographic material is used both to stimulate sexual excitement and to feed the fantasies of paedophiles both as a means of exchanging materials to establish a trusting relationship with other paedophiles or, increasingly more, to gain profits by selling pictures to others. Pictures may be used to blackmail the victims of abuse and guarantee their silence or to show other children to convince them to accept sexual proposals from adults. Material may be amateur or, as occurs with increasing frequency, professional material that is the result of organized criminals operating in countries in which poverty and inequality make children more vulnerable and promote tolerance of abuse and impunity with respect to the perpetrators. Pictures of sexual abuse on children circulate on the Internet, exploiting all the distribution channels available online as part of activities with indisputable commercial roots, as they are a source of earning for criminal organizations.